with a sweeping forward motion of the arm from the side of the body at or below shoulder level: a sidearm pitch
Thrown with or marked by a sideways motion of the arm between shoulder and hip height and relatively parallel to the ground: a sidearm baseball pitch.
(third-person singular simple present sidearms, present participle sidearming, simple past and past participle sidearmed)
- To throw a ball with one's arm roughly parallel to the ground.
(comparative more sidearm, superlative most sidearm)
- With one's arm roughly parallel to the ground.